A microphone is a device that converts acoustic power into electric power, sound waves to electrical voltages, then converted into sound waves that are amplified through speakers.
We associate microphones often with the music and the entertainment industry, but the device can be dated back as early as the 1600s when scientists figured out that they could amplify sound.
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The word "microphone" was not used during this time until the 19th century but an English physicist and inventor named Robert Hooke developed an acoustic cup and string style phone, where he was considered to be a pioneer in the field of transmitting sound across a distance.
The Kish tablet is dated to 3500 B.C. and is considered by some experts to be the oldest form of known handwriting. It features proto-cuneiform signs - symbols that resemble a physical object. The Egyptian hieroglyphs are similar to this form of writing and date back to 3200 B.C.
Written language seems to have come about around 1200 B.C. in China and around 600 B.C. in the Americas.
There is no single man who can be truly credited for the discovery of electricity, but some of the names which would pop up in the list include Benjamin Franklin and his kite experiment, and Nikola Tesla who is often dubbed as the father of electricity because of his understandings of this force behind most of the everyday items which we use today. From home entertainment to the lights outside the road, electricity is behind it.
We are surrounded by sound waves. Sound has the power to communicate ideas, scare us, entertain us, even help us fall in love.
Sound waves are a kind of energy that is launched when an object vibrates. These waves travel through a medium like air or water. When they reach your eardrum, the brain translates the pressure waves into words or music.
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